3 Electric Exhaust Catback Control Valve Downpipe Cutout E-Cut Valve Remote. 1 100% Brand New and high quality 2 Comes with wireless remote 3 CNC Machine Flange for Resistance against Pressure and Corrosion 4 Increase Engine Output and Efficiency 5 Inlet/ Major Piping Diameters: 3 6 Professional Installation is Highly Recommended. It is avaiable for 12V Gasoline/diesel engine, can't use for 24V engine. 3 Electric Exhaust Catback Control Valve Downpipe Cutout E-Cut Valve+Toggle. 2 to 3 seconds to open or close all exhaust valve, please do not hold the remote control for a long time to avoid motor stalling, or it may affect the service life of the gear.